King of the Cowboys (1943)

Stars: Roy Rogers, Smiley Burnette, Bob Nolan
Director: Joseph Kane

Sabateurs are blowing up government warehouses (during World War II). Roy and his pals work undercover to put an end to their operations. Songs include "A Gay Ranchero," "Ride 'Em Cowboy," "Ride, Ranger, Ride," "Red River Valley," and "I'm an Old Cowhand.